Suggested IDE for EJB 2.1 development

Hi, I need to learn EJB for the 2.1 specification, and I am looking for one of those IDEs that have everything integrated and generate code, so I can read the help/tutorials included, make the examples and start from there. But all the IDEs I have downloaded generate code according EJB 3.0 specification (for example: Weblogic Workshop 10.3) and they don't make available previous versions of the IDEs. So what IDE do you recommend me to this purpose and where can I download it? Or should I take any of the latest IDEs and implement everything from scratch and not auto-generated? (I suppose the have backwards compatibility with 2.1 specification)
I'll appreciate a lot any help, suggestions or comments. Thank you very much in advance.